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Ne4ueva [31]
3 years ago
9

Which expression is equivalent to (2mn)^4/6m^-3n^-2? Assume .m=0,n=0

Mathematics
2 answers:
Elza [17]3 years ago
7 0

Given expression:\frac{(2mn)^4}{6m^{-3}n^{-2}}.

\mathrm{Apply\:exponent\:rule}:\quad \left(ab\right)^c=a^cb^c

\left(2mn\right)^4:\quad 2^4m^4n^4

=\frac{2^4m^4n^4}{6m^{-3}n^{-2}}

=\frac{2^4m^4n^4}{2\cdot \:3m^{-3}n^{-2}}

=\frac{2^3m^4n^4}{3m^{-3}n^{-2}}

\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}\:=\:x^{a-b}

\frac{m^4}{m^{-3}}=m^{4-\left(-3\right)}=m^7

=\frac{2^3m^7n^4}{3n^{-2}}

\frac{n^4}{n^{-2}}=n^{4-\left(-2\right)}=n^6

=\frac{2^3m^7n^6}{3}

=\frac{8m^7n^6}{3}\

<h3>Therefore, correct option is first option \frac{8m^7n^6}{3}.</h3>

kati45 [8]3 years ago
4 0
<span>8m^7n^6
------------
     3</span>
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